alpreu commented on a change in pull request #18153: URL: https://github.com/apache/flink/pull/18153#discussion_r806624471
########## File path: flink-connectors/flink-connector-elasticsearch7/src/main/java/org/apache/flink/connector/elasticsearch/source/enumerator/Elasticsearch7SourceEnumerator.java ########## @@ -0,0 +1,183 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.flink.connector.elasticsearch.source.enumerator; + +import org.apache.flink.annotation.Internal; +import org.apache.flink.api.connector.source.SourceEvent; +import org.apache.flink.api.connector.source.SplitEnumerator; +import org.apache.flink.api.connector.source.SplitEnumeratorContext; +import org.apache.flink.connector.elasticsearch.common.ElasticsearchUtil; +import org.apache.flink.connector.elasticsearch.common.NetworkClientConfig; +import org.apache.flink.connector.elasticsearch.source.Elasticsearch7SourceConfiguration; +import org.apache.flink.connector.elasticsearch.source.split.Elasticsearch7Split; +import org.apache.flink.util.FlinkRuntimeException; + +import org.apache.http.HttpHost; +import org.elasticsearch.action.search.OpenPointInTimeRequest; +import org.elasticsearch.action.search.OpenPointInTimeResponse; +import org.elasticsearch.client.RequestOptions; +import org.elasticsearch.client.RestClient; +import org.elasticsearch.client.RestHighLevelClient; +import org.elasticsearch.core.TimeValue; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import javax.annotation.Nullable; + +import java.io.IOException; +import java.util.ArrayList; +import java.util.Collection; +import java.util.Collections; +import java.util.List; +import java.util.Optional; +import java.util.stream.Collectors; +import java.util.stream.IntStream; + +/** The enumerator class for ElasticsearchSource. */ +@Internal +public class Elasticsearch7SourceEnumerator + implements SplitEnumerator<Elasticsearch7Split, Elasticsearch7SourceEnumState> { + private static final Logger LOG = LoggerFactory.getLogger(Elasticsearch7SourceEnumerator.class); + + private final Elasticsearch7SourceConfiguration sourceConfiguration; + + private final NetworkClientConfig networkClientConfig; + + private final SplitEnumeratorContext<Elasticsearch7Split> context; + + private ArrayList<Elasticsearch7Split> splits; + + private RestHighLevelClient client; + + public Elasticsearch7SourceEnumerator( + Elasticsearch7SourceConfiguration sourceConfiguration, + NetworkClientConfig networkClientConfig, + SplitEnumeratorContext<Elasticsearch7Split> context) { + this(sourceConfiguration, networkClientConfig, context, Collections.emptySet()); + } + + public Elasticsearch7SourceEnumerator( + Elasticsearch7SourceConfiguration sourceConfiguration, + NetworkClientConfig networkClientConfig, + SplitEnumeratorContext<Elasticsearch7Split> context, + Collection<Elasticsearch7Split> restoredSplits) { + this.sourceConfiguration = sourceConfiguration; + this.networkClientConfig = networkClientConfig; + this.context = context; + this.splits = new ArrayList<>(restoredSplits); + } + + @Override + public void start() { + client = getRestClient(); + LOG.info("Starting the ElasticsearchSourceEnumerator."); + + if (splits.isEmpty()) { + context.callAsync(this::initializePointInTime, this::handlePointInTimeCreation); + } + } + + @Override + public void close() throws IOException { + if (client != null) { + client.close(); + } + } + + @Override + public void addReader(int subtaskId) { + // this source is purely lazy-pull-based, nothing to do upon registration Review comment: Fixed as we talked about offline -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
